FreeRice : Learning English Vocabulary with Humanitarian Effort
Freerice.com is one interesting humanitarian site focusing on providing free online education on English vocabulary. Inside this page is a simple vocabulary word game, and as the user plays along rice in a form of grain units are calculated as score. Once, the user decided they collected enough rice grains (based on the score) they can proceed to click on the banner ad below. Advertisers interested, could also publish their ads here on this site to help fund the free rice distribution.
